看不到服务人员日志

Question

看不到我的服务人员的日志。这是我尝试为已注册并正在运行的Service Worker打开日志的步骤。

1. 打开chrome://serviceworker-internals/
2. 点击开始并检查
3. 刷新检查窗口
4. 等待日志显示

但是，chrome://serviceworker-internals/和ServiceWorker的检查都显示零日志。

但是，“检查”页面上的“源”选项卡显示了最新代码，应打印console.log 这是我正在尝试查看的日志的源代码

messaging.setBackgroundMessageHandler(payload => {
    const title = payload.notification.title;
    console.log(payload.notification);
    const options = {
        body: payload.notification.body,
        icon: payload.notification.icon,
        click_action: payload.notification.click_action || payload.data.click_action,
        link: payload.notification.link || payload.data.link,
        data: {
            time: new Date(Date.now()).toString(),
        },
    };

    return self.registration.showNotification(title, options);
});


self.addEventListener("notificationclick", function(event) {
    const notification = event.notification;
    notification.close();
    console.log(notification);
    const promiseChain = clients.openWindow('https://helloworld.com');
    event.waitUntil(promiseChain);

});

我正在使用Chrome v68.0.3440.106，MacOS v10.13.6